<template>
    <div>
       <!-- 面包屑导航区 -->
<el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
</el-breadcrumb>
<!-- 卡片试图区域 -->
<el-card>
    <!-- 搜索与添加区 -->
  <el-row :gutter="20">
      <el-col :span="8">
          <el-input placeholder='请输入内容' v-model="queryInfo.query" clearable @clear="getUserList">
    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
  </el-input>
      </el-col>
      <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
      </el-col>
  </el-row>
  <!-- 用户列表区域 -->
  <el-table :data="userlist" border stripe>
      <el-table-column type="index" label="#"></el-table-column>
      <el-table-column label="姓名" prop="username"></el-table-column>
      <el-table-column label="邮箱" prop="email"></el-table-column>
      <el-table-column label="电话" prop="mobile"></el-table-column>
      <el-table-column label="角色" prop="role_name"></el-table-column>
      <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
              <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
              </el-switch>
        </template>
      </el-table-column>
      <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
              <!-- 修改按钮 -->
    <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
    <!-- 删除按钮 -->
    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
    <!-- 分配角色按钮 -->
    <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
         <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
    </el-tooltip>
          </template>
      </el-table-column>
  </el-table>
  <!-- 分页区域 -->
  <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1,2,5,10,20]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>

<!-- 添加用户的对话框 -->
<el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%" @close="addDialogClosed">
  <!-- 内容主体 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户的对话框 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="50%" @close="editDialogClosed">
  <el-form :model="editForm" :rules="addFormRules" ref="editFormRef" label-width="70px">
  <el-form-item label="用户名">
    <el-input v-model="editForm.email" disabled></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="disabled">
    <el-input v-model="editForm.username"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="editForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>

<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisble"
  width="50%" @close="setRoleDialogClosed">
  <div>
    <p>当前的用户: {{userInfo.username}}</p>
    <p>当前的角色: {{userInfo.role_name}}</p>
    <p>分配新血色:
     <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisble = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
    </div>
</template>

<script>
export default {
data() {
    // 验证邮箱规则
    var checkEmail = (rule, value, cb) => {
        // 验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
        if (regEmail.test(value)) {
            return cb()
        }
        cb(new Error('请输入合法邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
        // 验证手机号的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if (regMobile.test(value)) {
            return cb()
        }
        cb(new Error('请输入合法的手机号'))
    }
    return {
        // 获取用户列表的参数对象
        queryInfo: {
            query: '',
            // 当前的页数
            pagenum: 1,
        // 当前每页显示多少条数据
            pagesize: 2
        },
        userlist: [],
        total: 0,
        // 控制对话框的显示与隐藏
        addDialogVisible: false,
        // 添加用户的表单数据
        addForm: {
            username: '',
            password: '',
            email: '',
            mobile: ''
        },
        // 添加表单的验证规则对象
        addFormRules: {
            username: [
                {
                required: true, message: '请输入用户名', trigger: 'blur'
                },
                {
                     min: 3,
                 max: 10,
                 message: '用户名的长度应该在3-10个字符之间',
                 trigger: 'blur'
                 }
            ],
             password: [
                {
                required: true, message: '请输入密码', trigger: 'blur'
                },
                {
                 min: 6,
                 max: 15,
                 message: '用户名的长度应该在6-15个字符之间',
                 trigger: 'blur'
                 }
            ],
            email: [
                 {
                required: true, message: '请输入邮箱', trigger: 'blur'
                }, { validator: checkEmail, trigger: 'blur' }
            ],
            mobile: [
                 {
                required: true, message: '请输入邮箱', trigger: 'blur'
                }, { validator: checkMobile, trigger: 'blur' }
            ]
        },
        // 控制修改用户对话框的显示与隐藏
        editDialogVisible: false,
        // 查询到的用户信息对象
        editForm: {},
        // 修改表单的验证规则对象
        editFormRules: {
            email: [
                { required: true, message: '请输入用户邮箱', trigger: 'blur' },
                { validator: checkEmail, trigger: 'blur' }
            ],
            mobile: [
                { required: true, message: '请输入用户手机', trigger: 'blur' },
                { validator: checkMobile, trigger: 'blur' }
            ]
        },
        // 控制分配角色对话框的显示与隐藏
        setRoleDialogVisble: false,
        // 需要被分配角色的用户信息
        userInfo: {},
        // 所有角色的数据列表
        rolesList: [],
        // 已经选中的角色ID值
        selectedRoleId: ''
    }
},
created() {
    this.getUserList()
},
methods: {
    async getUserList() {
       const { data: res } = await this.$http.get('users', { params: this.queryInfo })
        if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
        this.userlist = res.data.users
        this.total = res.data.total
    },
    // 监听pagesize 改变的事件
    handleSizeChange(newSize) {
    this.queryInfo.pagesize = newSize
    this.getUserList()
    },
    // 监听页码值得变化
    handleCurrentChange(newPage) {
        this.queryInfo.pagenum = newPage
        this.getUserList()
    },
    async userStateChanged(userinfo) {
        const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if (res.meta.status !== 200) {
            userinfo.mg_state = !userinfo.mg_state
            return this.$message.error('更新用户状态失败')
        }
        this.$message.success('更新用户状态成功')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
        this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加新用户
    addUser() {
        this.$refs.addFormRef.validate(async valid => {
            if (!valid) return
            // 可以发起添加用户的网络请求
           const { data: res } = await this.$http.post('users', this.addForm)
           if (res.meta.status !== 201) {
               this.$message.error('添加用户失败')
           }
           this.$message.success('添加用户成功')
        //    重新获取用户列表的数据
           this.addDialogVisible = false
        //    重新获取用户列表的数据
        this.getUserList()
        })
    },
    // 展示用户编辑的对话框
    async showEditDialog(id) {
    const { data: res } = await this.$http.get('users/' + id)
    if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
    }
    this.editForm = res.data
    this.editDialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed() {
        this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo() {
        this.$refs.editFormRef.validate(async valid => {
            if (!valid) return
            // 发起修改用户信息的数据请求
            const { data: res } = await this.$http.put('users/' + this.editForm.id,
            {
                email: this.editForm.email,
                mobile: this.editForm.mobile
            })
            if (res.meta.status !== 200) {
                return this.$message.error('更新用户失败')
            }
            // 成功以后做的事
            // 关闭对话框
            this.editDialogVisible = false
            // 刷新数据列表
            this.getUserList()
            // 提示修改成功
            this.$message.success('更新用户成功！')
        })
    },
    async removeUserById(id) {
        // 先弹框询问
        const confirmResult = await this.$confirm('真的要删除吗？', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        if (confirmResult !== 'confirm') {
            return this.$message.info('已取消删除')
        }
        const { data: res } = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200) {
            return this.$message.error('删除用户失败！')
        }
        this.$message.success('删除成功')
        // 刷新列表
        this.getUserList()
    },
    // 显示与分配的对话框
    async setRole(userInfo) {
        this.userInfo = userInfo
        // 在展示对话框之前，获取所有的角色列表
        const { data: res } = await this.$http.get('roles')
        if (res.meta.status !== 200) {
            return this.$message.error('获取用户列表失败')
        }
        this.rolesList = res.data
        this.setRoleDialogVisble = true
    },
    // 点击按钮分配角色
    async saveRoleInfo() {
        if (!this.selectedRoleId) {
            return this.$message.error('请选择要分配的角色！')
        }
        const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
            rid: this.selectedRoleId
        })
        if (res.meta.status !== 200) {
            console.log(res)
            return this.$message.error('更新角色失败！')
        }
        this.$message.success('更新角色成功')
        this.getUserList()
        this.setRoleDialogVisble = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
        this.selectedRoleId = ''
        this.userInfo = {}
    }
}
}
</script>

<style lang="less" scoped>
</style>